Newman, W. M. (1973). American Pluralism: A Study of Minority Groups and Social Theory. Harper & Row, Publishers, Inc.

Green, D. P., & Wong, J. S. (2009). Tolerance and the Contact Hypothesis: A Field Experiment. In The Political Psychology of Democratic Citizenship (pp. 228-246). Oxford UP. https://doi.org/10.1093/acprof:oso/9780195335453.003.0010

Mitnick, L. L., & McGinnies, E. (1958). Influencing ethnocentrism in small discussion groups through a film communication. The Journal of Abnormal and Social Psychology, 56, 82-90. https://doi.org/10.1037/h0045323

Myers, D. G., & Bishop, G. D. (1970). Discussion Effects on Racial Attitudes. Science, 169, 778-779. https://doi.org/10.1126/science.169.3947.778

Gardiner, G. S. (1972). Complexity training and prejudice reduction. Journal of Applied Social Psychology, 2, 326-342. https://doi.org/10.1111/j.1559-1816.1972.tb01284.x

Parish, T. S., Shirazi, A., & Lambert, F. (1973). Conditioning away prejudicial attitudes in children. Perceptual and Motor Skills, 43, 907-912. https://doi.org/10.2466/pms.1976.43.3.907

Sheare, J. B. (1974). Social acceptance of EMR adolescents in integrated programs. American Journal of Mental Deficiency, 78, 678-682.

Commins, B., & Lockwood, J. (1978). The effects of intergroup relations of mixing Roman Catholics and Protestants: An experimental investigation. European Journal of Social Psychology, 8, 218-219. https://doi.org/10.1002/ejsp.2420080310

Vanbeselaere, N. (1987). The effects of dichotomous and crossed social categorizations upon intergroup discrimination. European Journal of Social Psychology, 17, 143-156. https://doi.org/10.1002/ejsp.2420170203

Short, G., & Carrington, B. (1991). Unfair Discrimination: teaching the principles to children of primary school age. Journal of Moral Education, 157-176. https://doi.org/10.1080/0305724910200204